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MY CURRENT PROJECT CARS:
- 1987 BMW 325 Coupe TURBO
- 2008 Lotus Elise (Current Daily driver)
- 2019 Subaru Crosstrek Limited LIFTED
According to Tire Rack:
Most wheel designs feature the tire well/drop center on the outboard side of the wheel, requiring mounting the tire with the front of the wheel's design/spokes facing up when installed on the tire mounting machine.
However, wheel designs featuring deep-dish or wide-lip styling must typically be mounted from the rear/back, requiring their tire well/drop location be adjacent to the inboard side of the wheel. The technician needs to recognize the wheel has a reverse-mount design, and carefully secure the wheel in the mounting machine with the front of the wheel's design/spokes facing down.
Reverse mount wheels must always have tires mounted/dismounted from the back of the wheel. If a shop technician attempts to mount or dismount a tire on a reverse-mount wheel from the front, the distance from the wheel flange to the tire well/drop center will exceed the tire's bead diameter. The tire mounting machine's hi-torque turntable (850 ft.-lbs.) can apply excessive tension to the tire bead assembly, tearing the rubber covering and/or damaging the casing cords by compressing them against the wheel or the tire machine's mounting head. Overstretching the tire bead may also exceed its breaking point, fracturing the steel wires and causing them to fail as the tire is inflated.